CVE-2019-13143

An HTTP parameter pollution issue was discovered on Shenzhen Dragon Brothers Fingerprint Bluetooth Round Padlock FB50 2.3. With the user ID, user name, and the lock's MAC address, anyone can unbind the existing owner of the lock, and bind themselves instead. This leads to complete takeover of the lock. The user ID, name, and MAC address are trivially obtained from APIs found within the Android or iOS application. With only the MAC address of the lock, any attacker can transfer ownership of the lock from the current user, over to the attacker's account. Thus rendering the lock completely inaccessible to the current user.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 9.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:C

Exploitability : 10.0 / Impact : 8.5

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact COMPLETE

References

Link	Resource
http://blog.securelayer7.net/fb50-smart-lock-vulnerability-disclosure/	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:shenzhen_dragon_brothers:fb50_firmware:2.3:*:*:*:*:*:*:*

cpe:2.3:h:shenzhen_dragon_brothers:fb50:-:*:*:*:*:*:*:*

Information

Published : 2019-08-06 11:15

Updated : 2020-08-24 10:37

NVD link : CVE-2019-13143

Mitre link : CVE-2019-13143

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

shenzhen_dragon_brothers

fb50
fb50_firmware

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